From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f51.google.com (mail-pa0-f51.google.com [209.85.220.51]) by kanga.kvack.org (Postfix) with ESMTP id 24D3C6B004D for ; Thu, 10 Oct 2013 15:55:10 -0400 (EDT) Received: by mail-pa0-f51.google.com with SMTP id kp14so3271349pab.10 for ; Thu, 10 Oct 2013 12:55:09 -0700 (PDT) Date: Thu, 10 Oct 2013 12:55:06 -0700 From: Andrew Morton Subject: Re: [PATCH v3 3/3] mm/zswap: avoid unnecessary page scanning Message-Id: <20131010125506.158c871becad30328abf6838@linux-foundation.org> In-Reply-To: <000101ceb836$1a4c0ee0$4ee42ca0$%yang@samsung.com> References: <000101ceb836$1a4c0ee0$4ee42ca0$%yang@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Weijie Yang Cc: sjenning@linux.vnet.ibm.com, bob.liu@oracle.com, minchan@kernel.org, weijie.yang.kh@gmail.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, d.j.shin@samsung.com, heesub.shin@samsung.com, kyungmin.park@samsung.com, hau.chen@samsung.com, bifeng.tong@samsung.com, rui.xie@samsung.com On Mon, 23 Sep 2013 16:21:49 +0800 Weijie Yang wrote: > add SetPageReclaim before __swap_writepage so that page can be moved to the > tail of the inactive list, which can avoid unnecessary page scanning as this > page was reclaimed by swap subsystem before. > > Signed-off-by: Weijie Yang > Reviewed-by: Bob Liu > Cc: Minchan Kim > Cc: stable@vger.kernel.org > Acked-by: Seth Jennings As a minor(?) performance tweak, I don't believe this is suitable for -stable backporting, so I took that out. If you believe this was a mistake, please explain why. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org